Yehi Ratzon for Bircas Hachodesh

There is no recording for the Yehi Ratzon since it is not said at KAYJ. original minhag Ashkenaz didn't have the Yehi Ratzon, and in Frankfurt the minhag is not to say it ( Divrei Kehillos pg 89).
The reason it is not said is since it is a problem to ask for earthly needs on Shabbos. The Yehi Rotzon talks about parnoso etc. and it is mentioned in the Gemoro (Brachot daf טז amud ב) as a prayer that Rav used to pray after his regular Shmone esre. The Oruch Hashulchon (Orach Chayim siman תיז se'if ט) talks against saying it for these reasons.

Michael

I would like to add that Chazzan Weiss (of KAJ) before recording the melody for the Yehi ratzon, says "this is a melody for the Yehi ratzon, although in Frankfurt this was not said".

Michael

In KAYJ and all Machon Moreshes Ashkenaz shuls in EY the short Nusach of Yechadshehu is said.

Michael

The Chazon Ish held that one should always say the short Yechadshehu and shouldn't say Yehi Rotzon, even when Davening in a shul that says the long Yechadshehu and says Yehi Rotzon. The reason for this is because in the long Yechadshehu and Yehi Rotzon there is a problem of Bakoshas Tzrochim in Shabbos.

Michael FRBSH